SLG continuous modifying machine for powder surface is a deep-processing equipment independently developed by our company in conjunction with China University of Mining and Technology for surface treatment of inorganic powders. Its main technical indicators have reached the international advanced level. It is used for surface modification of superfine light (heavy) calcium carbonate and calcined kaolin with D97 < 10 micron. Its production capacity is over 6.0 t/h and activation index is over 98% per unit product. The energy consumption is less than 35 kwh/t.